National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Mostly Cloudy

79°F

26°C

Humidity 50%
Wind Speed S 17 mph
Barometer 29.97 in (1014.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Feb 3:56 pm CST
Extended Forecast for

Lockhart TX

  • Tonight

    Tonight: A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after noon. High near 75. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly clear, with a low around 55. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 76. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. North wind 5 to 10 mph becoming light in the evening.

    Low: 47 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. South southeast wind around 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 84. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. South wind 5 to 10 mph.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Showers, with thunderstorms also possible after noon. High near 75. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly clear, with a low around 55. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 76. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 47. North wind 5 to 10 mph becoming light in the evening.
Washington's Birthday
Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 51. South southeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 84. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 57. South wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
4:32 pm CST Feb 13, 2026
Forecast Valid:
4pm CST Feb 13, 2026-6pm CST Feb 20, 2026
 
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Additional Resources

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Chance of Precipitation